Beneficiation method of black and white tungsten mineral

A beneficiation method and technology of black and white tungsten, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of low grade of tungsten concentrate, low recovery rate of wolframite and fine mud tungsten concentrate, etc. , to achieve the effect of high tungsten recovery rate, low pharmaceutical cost and simple process

Active Publication Date: 2010-02-17
广东省资源综合利用研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the tungsten recovery rate of the black and white tungsten mixed concentrate obtained by this method can reach about 80%, the total recovery rate of tungsten is ≤72%, because when the black and white tungsten mixed concentrate is heated and concentrated in scheelite, the temperature is greater than 90°

Method used

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  • Beneficiation method of black and white tungsten mineral
  • Beneficiation method of black and white tungsten mineral
  • Beneficiation method of black and white tungsten mineral

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Black and white tungsten feed contains 0.53% WO 3 , the ratio of black and white tungsten is 3.5:6.5, first rough scheelite selection, scheelite rough selection according to the pharmaceutical system in Table 1, add regulator sodium carbonate, sodium hydroxide, water glass and sulfated oleic acid soap and stir for 10 minutes, then carry out 1 Secondary roughing, add sodium hydroxide and water glass, stir for 3 minutes, carry out 2 separations, add sulfated oleic acid soap, stir for 7 minutes, carry out 3 sweepings to obtain scheelite rough concentrate and scheelite Roughly selected tailings; scheelite coarse concentrate is subjected to scheelite heating and concentration, and scheelite is heated and selected according to the chemical system in Table 1. After 1.0 hours of heat preservation, 1 roughing is carried out without adding chemical, and after stirring for 3 minutes , carry out 2 times of beneficiation, without adding chemicals, after stirring for 6 minutes, carry...

Embodiment 2

[0017] Black and white tungsten feed contains 0.50% WO 3 , the ratio of black and white tungsten is 4:6, firstly carry out rough separation of scheelite, add regulator sodium carbonate, sodium hydroxide, water glass and sulfated oleic acid soap according to the pharmaceutical system in Table 1, and stir for 13 minutes, then carry out 1 For the second roughing, add sodium hydroxide and water glass, stir for 4 minutes, carry out 2 times of refining, add sulfated oleic acid soap, stir for 9 minutes, then carry out 3 times of sweeping to obtain scheelite rough concentrate and scheelite Roughly selected tailings; scheelite crude concentrate is subjected to scheelite heating and concentration, and scheelite is heated and selected according to the chemical system in Table 1. After 1.5 hours of heat preservation, a rough separation is carried out without adding chemicals, and after stirring for 2 minutes , for 3 times of beneficiation, without adding chemicals, after stirring for 5 mi...

Embodiment 3

[0019] Black and white tungsten feed contains 0.26% WO 3 , the ratio of black and white tungsten is 1.5:8.5, firstly carry out rough separation of scheelite, add regulator sodium carbonate, sodium hydroxide, water glass and sulfated oleic acid soap according to the pharmaceutical system in Table 1 and stir for 15 minutes, then carry out 1 For the second roughing, add sodium hydroxide and water glass, stir for 5 minutes, then carry out 3 times of refining, add sulfated oleic acid soap, stir for 10 minutes, then carry out 2 times of sweeping to obtain scheelite rough concentrate and scheelite Rough separation tailings; scheelite crude concentrate is subjected to scheelite heating and concentration, and scheelite heating and concentration is carried out according to the chemical system in Table 1. After 1.5 hours of heat preservation, a rough separation is carried out without adding chemical, and after stirring for 5 minutes , carry out 2 times of beneficiation, without adding ch...

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Abstract

The invention relates to a beneficiation method of black and white tungsten mineral.The method is characterized in that: black and white tungsten mineral through sulfide floatation and magnetic separation deferrization is added with sodium hydroxide, sodium carbonate, sodium silicate and sulphated nascent soap for white tungsten roughing, so as to obtain white tungsten rough concentrate and white tungsten rougher tailings; the white tungsten rough concentrate is added with sodium silicate, sodium hydroxide, sodium sulfide and sulphated nascent soap for white tungsten warming cleaning, so as to obtain white tungsten concentrate and white tungsten warming tailings; the white tungsten rougher tailings and the white tungsten warming tailings are mixed for magnetic separation, so as to obtain black tungsten magnetic separation concentrate and black tungsten magnetic separation tailings; the black tungsten magnetic separation concentrate is added with sodium carbonate, sodium silicate, aluminum sulfate, lead nitrate, sodium fluosilicate, benzohydroxamic acid, sulphated nascent soap and karaffin oil for black tungsten flotation, so as to obtain black tungsten concentrate and black tungsten flotation tailings. The method of the invention is simple in recovery technology, steady in process, high in tungsten recovery rate and low in reagent cost, the used beneficiation reagent does not pollute the environment, and tailings water can meet emission requirement. The invention is applicable to black and white tungsten mineral with WO3 content of .15-2.0% and black and white tungsten proportion of 1:9 to 9:1.

Description

technical field [0001] The invention relates to a beneficiation method of tungsten minerals. Background technique [0002] my country is rich in tungsten resources, ranking first in the world in both reserves and output. In the symbiotic ore of scheelite and wolframite, the ratio of scheelite to wolframite is 1:9~9:1. Mineral processing from symbiotic complex polymetallic ores such as sulfide, magnetite, wolframite, scheelite, garnet, pyroxene, hornblende, chlorite, fluorite, calcite, quartz, feldspar, mica, etc. Separating scheelite and wolframite has always been a difficult mineral processing topic. [0003] Chinese Patent No. 200410051961.1 discloses a beneficiation method for recovering black and white tungsten minerals from complex polymetallic ores. The method is to remove iron minerals by weak magnetic separation and sulfide ore flotation to remove sulfide minerals. Black and white tungsten mixed flotation is used in neutral medium to obtain black and white tungste...

Claims

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Application Information

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IPC IPC(8): B03B7/00
Inventor 周晓彤邓丽红关通翟爱峰
Owner 广东省资源综合利用研究所
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